From the given graph of the system of equations
It is the point (2,0) is not on any of the graphs of f(x) and g(x). Also,
Since (2,0) doesn't satisfy given equations, therefore, (2,0) is not a solution of the given system.
It can be noted that the solution of the system is (0,2) as it lies on the intersection of f(x) and g(x)